A101276 - cp's OEIS frontend

A101276 Triangle read by rows: T(n,k) is the number of ordered trees having n edges and k branches of length 1.

n	a(n)
0	1
1	0
2	1
3	1
4	0
5	1
6	1
7	2
8	0
9	2
10	2
11	2
12	6
13	0
14	4
15	3
16	8
17	6
18	16
19	0
20	9
21	6
22	14
23	30
24	16
25	45
26	0
27	21
28	11
29	36
30	54
31	106
32	45
33	126
34	0
35	51
36	22
37	74
38	168
39	196
40	360
41	126
42	357
43	0
44	127
45	43
46	173
47	372
48	706
49	675
50	1197
51	357
52	1016
53	0
54	323
55	87
56	378
57	981
58	1636
59	2775
60	2268
61	3913
62	1016
63	2907
64	0
65	835
66	176
67	860
68	2310
69	4771
70	6660
71	10451
72	7469
73	12644
74	2907
75	8350
76	0
77	2188

[1, 0, 1, 1, 0, 1, 1, 2, 0, 2, 2, 2, 6, 0, 4, 3, 8, 6, 16, 0, 9, 6, 14, 30, 16, 45, 0, 21, 11, 36, 54, 106, 45, 126, 0, 51, 22, 74, 168, 196, 360, 126, 357, 0, 127, 43, 173, 372, 706, 675, 1197, 357, 1016, 0, 323, 87, 378, 981, 1636, 2775, 2268, 3913, 1016, 2907, 0, 835, 176, 860, 2310, 4771, 6660, 10451, 7469, 12644, 2907, 8350, 0, 2188]

cp's OEIS Frontend

A101276 Triangle read by rows: T(n,k) is the number of ordered trees having n edges and k branches of length 1.

Table of values

List of values